A chiral stationary phase comprises a porous framework material and biomolecules. The porous framework material includes one of the metal-organic framework (MOF) material, the covalent organic framework (COF) material and the hydrogen-bonded organic framework (HOF) material. The biomolecules are biological chiral resolving agents. A pore size of the porous framework material is 0.2-15 nm. The porous framework material serves as a solid carrier. The biomolecules are loaded into the porous framework material. The porous framework material is modified with one or more of carboxyl, hydroxyl, amino, aldehyde, double bonds and mercapto groups.

A column for removal of a component from a fluid is disclosed. The column has a compartment with a cross sectional area. The compartment contains beads having a diameter. A ligand selected to bind to the component is coupled to the beads. The cross-sectional area and bead diameter are selected to maintain a flow velocity of the fluid within the compartment below a first threshold, thereby reducing leaching of the ligand into the fluid. Also described herein is an adsorbent comprising a ligand that is attached to a substrate by an amine bond, wherein the ligand is resistant to dissociation from the substrate.

The present invention provides a separation material that comprises porous polymer particles comprising a styrene-based monomer as a monomer unit; and a coating layer comprising a macromolecule having hydroxyl groups, which covers at least a portion of the surface of the porous polymer particles, and the separation material has a 5% compressive deformation modulus of 100 to 1,000 MPa, and has a mode diameter in the pore size distribution of 0.1 to 0.5 μm.

The invention relates to a separation matrix comprising at least 11 mg/ml Fc-binding ligands covalently coupled to a porous support, wherein: a) the ligands comprise multimers of alkali-stabilized Protein A domains, and b) the porous support comprises cross-linked polymer particles having a volume-weighted median diameter (d50, v) of 56-70 micrometers and a dry solids weight of 55-80 mg/ml.

A separation material includes a matrix that is bound to a saccharide, enabling the separation from a liquid of substances that selectively bind the saccharide. A method for preparing the separation material and a method for separating substances from a liquid that selectively bind a saccharide of the separation material are also described. A device employs the separation material for separating from a liquid substances that selectively bind to the saccharide of the separation material.

A first Fab region-binding peptide includes an amino acid sequence selected from the group consisting of SEQ ID NOs: 1 to 5 with substitution of one or more amino acid residues at the 17.sup.th position and the 36.sup.th position, wherein an acid dissociation pH thereof is shifted to a neutral side. A second Fab region-binding peptide further includes deletion, substitution and/or addition of one or more amino acid residues at positions other than the 17.sup.th position and the 36.sup.th position. A third Fab region-binding peptide includes an amino acid sequence with a sequence identity of 80% or more to the amino acid sequence of the first Fab region-binding peptide.

Methods that include providing and reacting a solid support and an alkali-stable ligand derived from an immunoglobulin-binding bacterial protein to form a separation matrix having covalently coupled alkali-stable ligands; and washing with a wash solution comprising at least 10 mM of an alkali metal hydroxide.

A fiber is provided as a substrate for a functional nanostructure (coated fiber), composed of (a) a fiber substrate; (b) a reactive dye conjugating moiety covalently bound to the fiber substrate; (c) a bonding agent covalently bound to the reactive dye conjugating moiety; and (d) the functional nanostructure bound to the bonding agent. A method of making the coated fiber is also provided, involving the following steps in any order: covalently binding the reactive dye conjugating moiety to the fiber; covalently binding a bonding agent to the reactive dye conjugating moiety; and binding the functional nanostructure to the bonding agent. The nanostructures are tenaciously attached to the fibers, resisting very rough treatments, and can be made using inexpensive and widely available reactive dyes under non-stringent synthesis conditions.

The present invention provides a separation material comprising porous polymer particles that comprise a styrene-based monomer as a monomer unit; and a coating layer that comprises a macromolecule having hydroxyl groups and covers at least a portion of the surface of the porous polymer particles, wherein the rupture strength is 10 mN or higher.

Provided is a silica particle coated with β-cyclodextrin, wherein said cyclodextrin is attached to said silica particle via at least one crosslinking agent and/or at least one copolymer. Also provided are methods of removing contaminants from a flowing or stationary liquid phase comprising the step of contacting said liquid phase with the silica particle coated with β-cyclodextrin.